Unverified50% confidenceFactExact time
苹果、谷歌、微软三大平台已联合支持Passkey，认证凭据通过各平台云端钥匙串自动同步
1
Sources
50%
Confidence
Long-term
Relevance
8/7/2026
First Seen
Sources
Related Claims
UnverifiedPasskey, as a consumer-level evolution of FIDO2, is jointly promoted by Apple, Google, and Microsoft and supports cross-device synchronization.80% similarUnverifiedApple iCloud Keychain, Google Password Manager, and Windows Hello already support syncing Passkeys to multiple devices under the same account via end-to-end encryption78% similarUnverifiediOS原生App认证链路包含三层结构：操作系统级Keychain（含Secure Enclave硬件加密）、平台设备证明服务（Device Check/App Attest）、应用层业务鉴权69% similar
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